Choose WEST SYSTEM epoxy fillers by the job: adhesive bonding and gap filling, wood-toned fillets, hardware bonding or surface fairing. These powders modify correctly mixed epoxy; they are not standalone adhesives and do not replace hardener.
Bonding or fairing?
Compare 403 Microfibers, 404 High-Density, 405 Filleting Blend and 406 Colloidal Silica for adhesive applications. Compare 407 Low-Density and 410 Microlight for fairing and sanding. Check each listing for color, package weight and limitations, including 410's restrictions on dark finishes and high-temperature exposure.
Pair with a suitable 105 Resin and hardener system. Use the manufacturer's filler selection guide to compare applications, or browse all WEST SYSTEM products.
